Urea electrolysis is regarded as an alternative energy-saving hydrogen production technique to replace the conventional water splitting method due to the predicted lower thermodynamic potential. Herein, we demonstrate a robust and mass-produced strategy to in-situ grow Ni₂P/Fe₂P nanohybrids on Ni foam (Ni₂P/Fe₂P/NF) as an advanced electrode for overall urea electrolysis via a 30 s manual shaking reaction of FeCl₃·6H₂O, K₃[Fe(CN)₆] and pre-treated NF, followed by a facile phosphorization treatment. The as-prepared Ni₂P/Fe₂P/NF electrode exhibits high activity for the HER at 115 mV and UOR at 1.36 V with the current density of 10 mA cm⁻², and only a cell voltage of 1.47 V is required to deliver the current density of 10 mA cm⁻². This work reveals a promising industrializable pathway to develop non-noble materials as bifunctional catalysts.

由于预测的较低的热力学势能，尿素电解被认为是替代传统的水分解方法的节能氢生产技术。在本文中，我们展示了一种稳健且批量生产的策略，该方法可以在Ni泡沫（Ni ₂ P / Fe ₂ P / NF）上原位生长Ni ₂ P / Fe ₂ P纳米杂化物，作为通过30 s进行尿素整体电解的高级电极将FeCl ₃ ·6H ₂ O，K ₃ [Fe（CN）₆ ]与预处理的NF进行手动摇动反应，然后进行简单的磷化处理。制备的Ni ₂ P / Fe ₂P / NF电极在115 mV时对HER表现出高活性，在1.36 V时对UOR表现出高活性，电流密度为10 mA cm ^-2，仅需要1.47 V的电池电压即可提供10 mA cm ^-2的电流密度。这项工作揭示了开发非贵族材料作为双功能催化剂的有前途的工业化途径。